Vocal quartet Singers Unlimited was formed from the ashes of the jazz band the Hi-Lo’s. Don Shelton enlisted fellow Hi-Lo’s veteran Gene Puerling, Len Dresslar, and Bonnie Herman with the express intention of recording televsion commercials in the doo-wop/vocal group idiom. However, the 30-second jingles hardly satisfied their artistic ambitions, and the quartet recorded a take on the Beatles’ “The Fool On The Hill” with some leftover studio time. Jazz pianist Oscar Peterson passed the demo to MPS Records, who promptly signed the group for their excellent 1972 debut A CAPPELLA. Singers Unlimited continued to release a steady stream of albums to a loyal following during the ‘70s and into the ‘80s.